Preheat and prep: Heat the oven to 400°F (205°C).
Line a sheet pan with parchment, or get a large skillet ready for searing.
Mix the seasoning: If making the DIY Cajun blend, stir all spices together in a small bowl.
Build the meatball mixture: In a large bowl, add ground chicken, egg, almond flour, parsley, green onions, garlic, Cajun seasoning, smoked paprika, salt, and pepper. Mix gently with a fork or your hands until just combined. Do not overmix.
Form the meatballs: Lightly oil your hands.
Scoop and roll into 18–22 meatballs, about 1.5 inches each. Place on the prepared sheet pan, or set aside for skillet cooking.
Choose your cooking method: Oven: Brush or spray meatballs with oil. Bake 14–18 minutes until cooked through (internal temp 165°F/74°C).
Broil 1–2 minutes for color.
Skillet: Heat 1–2 tablespoons oil over medium-high. Sear meatballs in batches, 3–4 minutes per side, until browned and cooked through.
Air fryer: 390°F (200°C) for 10–12 minutes, shaking halfway, until 165°F inside.
Make the creamy Cajun sauce (same pan if using skillet): Melt butter over medium heat. Add garlic and Cajun seasoning; cook 30 seconds until fragrant.
Stir in chicken broth and simmer 2 minutes. Add cream, Dijon, and Parmesan; simmer gently 2–3 minutes to thicken. Finish with lemon juice.
Season to taste.
Coat and serve: Add cooked meatballs to the sauce, turning to coat. Serve over cauliflower rice or greens. Garnish with parsley or green onions.